Polyurethane foams of increased flame retardancy

Details Polyurethane foams of increased flame retardancy Polyurethane foams of increased flame retardancy

1991-12-09

1993-03-30

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

25218227, 521129, 521132, 521137, 521174, 521914, C08J 900

Patent

active

051984733

ABSTRACT:
The flame retardancy of flexible polyurethane foams is increased by incorporation into the foam forming reactants of a low molecular weight, high primary hydroxyl trifunctional polyether polyol having a hydroxyl number between 300 and 500 and a primary hydroxyl content greater than 50 percent.

REFERENCES:
patent: 4026829 (1977-05-01), Samura et al.
patent: 4722942 (1988-02-01), Nichols et al.

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